Table 1 Baseline demographic and clinical characteristics
| Â | Â | Frailty score | ||||
|---|---|---|---|---|---|---|
0 | 1 | 2 | 3 | 4 | ||
Total participants: N = 581 | N = 581 | N = 173 | N = 195 | N = 109 | N = 88 | N = 16 |
Age, years: N (%) | ||||||
 Mean [range] | 53.4 [22–81] | 54.3 [29–72] | 54.3 [22–76] | 51.7 [26–75] | 51.3 [26–81] | 55.75 [35–81] |
 < 50 | 205 (35.3) | 57 (32.9) | 58 (29.7) | 46 (42.2) | 39 (44.3) | 5 (31.3) |
 50–64 | 284 (48.9) | 87 (50.3) | 101 (51.8) | 49 (45.0) | 39 (44.3) | 8 (50.0) |
 ≥ 65 | 92 (15.8) | 29 (16.8) | 36 (18.5) | 14 (12.8) | 10 (11.4) | 3 (18.7) |
Race: N (%) | ||||||
 White | 518 (89.2) | 158 (91.3) | 178 (91.3) | 94 (86.2) | 73 (83.0) | 15 (93.8) |
 Non-white | 63 (10.8) | 15 (8.7) | 17 (8.7) | 15 (13.8) | 15 (17.0) | 1 (6.2) |
Education: N (%) | ||||||
 High school or below | 142 (24.4) | 37 (21.4) | 42 (21.5) | 30 (27.5) | 27 (30.7) | 6 (37.5) |
 Some college or above | 439 (75.6) | 136 (78.6) | 153 (78.5) | 79 (72.5) | 61 (69.3) | 10 (62.5) |
Marital status: N (%) | ||||||
 Married/long-term relationship | 422 (72.6) | 139 (80.3) | 139 (71.3) | 71 (65.1) | 66 (75.0) | 7 (43.8) |
 Others | 159 (27.4) | 34 (19.7) | 56 (28.7) | 38 (34.9) | 22 (25.0) | 9 (56.2) |
Cancer stage: N (%) | ||||||
 I | 158 (27.2) | 50 (28.9) | 59 (30.3) | 27 (24.8) | 18 (20.4) | 4 (25.0) |
 II | 286 (49.2) | 94 (54.3) | 85 (43.6) | 56 (51.4) | 44 (50.0) | 7 (43.8) |
 III | 108 (18.6) | 24 (13.9) | 42 (21.5) | 20 (18.3) | 18 (20.5) | 4 (25.0) |
 Unknown | 29 (5.0) | 5 (2.9) | 9 (4.6) | 6 (5.5) | 8 (9.1) | 1 (6.2) |
Type of treatment: N (%) | ||||||
 Adjuvant | 481 (82.8) | 145 (83.8) | 154 (79.0) | 92 (84.4) | 76 (86.4) | 14 (87.5) |
 Neoadjuvant | 100 (17.2) | 28 (16.2) | 41 (21.0) | 17 (15.6) | 12 (13.6) | 2 (12.5) |
Type of chemotherapy: N (%) | ||||||
 Anthracycline | 278 (47.9) | 85 (49.1) | 91 (46.7) | 57 (52.2) | 38 (43.2) | 7 (43.8) |
 Non-anthracycline | 303 (52.1) | 88 (50.9) | 104 (53.3) | 52 (47.8) | 50 (56.8) | 9 (56.2) |
Growth factor: N (%) | ||||||
 Yes | 471 (81.1) | 147 (85.0) | 152 (77.9) | 89 (81.7) | 70 (79.5) | 13 (81.3) |
 No | 110 (18.9) | 26 (15.0) | 43 (22.1) | 20 (18.3) | 18 (20.5) | 3 (18.7) |